Mercurial > hg > truffle
changeset 1504:ae8f909e5fc7
6948602: Disable use of SSE4.2 in String.indexOf intrinsic until 6942326 is fixed
Summary: Disable the use of pcmpestri until it can be guaranteed that the load doesn't cross in to the uncommited space. See 6942326.
Reviewed-by: never, kvn
author | iveresov |
---|---|
date | Thu, 29 Apr 2010 17:53:58 -0700 |
parents | c640000b7cc1 |
children | 0c5b3cf3c1f5 |
files | src/share/vm/opto/library_call.cpp |
diffstat | 1 files changed, 3 insertions(+), 1 deletions(-) [+] |
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--- a/src/share/vm/opto/library_call.cpp Thu Apr 29 06:30:25 2010 -0700 +++ b/src/share/vm/opto/library_call.cpp Thu Apr 29 17:53:58 2010 -0700 @@ -1175,7 +1175,9 @@ Node *receiver = pop(); Node* result; - if (Matcher::has_match_rule(Op_StrIndexOf) && + // Disable the use of pcmpestri until it can be guaranteed that + // the load doesn't cross into the uncommited space. + if (false && Matcher::has_match_rule(Op_StrIndexOf) && UseSSE42Intrinsics) { // Generate SSE4.2 version of indexOf // We currently only have match rules that use SSE4.2